Date: Fri, 17 Nov 2000 10:05:23 -0800 From: "David Schwartz" <davids@webmaster.com> To: "Steve O'Hara-Smith" <steveo@eircom.net> Cc: <freebsd-stable@FreeBSD.ORG> Subject: RE: how can I run utilities at idle time? Message-ID: <NCBBLIEPOCNJOAEKBEAKEEGKLPAA.davids@webmaster.com> In-Reply-To: <20001117101506.1f26b9e5.steveo@eircom.net>
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> On Thu, 16 Nov 2000 16:10:05 -0800 (PST) > Doug White <dwhite@resnet.uoregon.edu> wrote: > > > On Wed, 15 Nov 2000, Steve O'Hara-Smith wrote: > > > It is trivially easy to create system-hanging deadlocks with > idprio. Use > > nice instead. If you need an example, try running setiathome at > > idprio. > > OK that's how to trigger problems. A few obvious questions > spring to mind on the > subject. Is it easy (possible) to avoid such problems ? No. > Is the > mechanism of the problem > understood (by anybody) ? Yes. Priority inversion. > Is the whole problem changed beyond > recognition with the -current > SMP changes ? I don't believe so, but I'm not sure. DS To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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